File-handle clamp



Dec. 14 1926. 1,611,101

. W. A. DAY

FILE HANDLE CLAMP Filed Feb. 24, 1926 20 5 2 z I! IIIIIII INVENTOR,

BY %M /i06 5; 56m.

" ATTORNEY.

Patented Dec. 14, 1e2s.

'WTLIMMA MY? 9 333 5T E MEWA$ F?Q a I s. WALKER; ost- BEIZLINGHAM, 'wa'sninerow. y ILE HANDLE LAMP. V

A plication fi1ed'Eebrua'ry 24,"i eae. ass-1 Nor-9 9 249. i i J l dy inirention.j elates to improvements in dius ofsaid ferrule??? file handle clamps, and one; of the objects 'wh le when said lever 18 .isin {its dottedof"myEnnprovementis to provide afile} han-f posit on a t/18' the longest. contacting radius a. A'ssieno'a'ca da s-sa s s artan v f dle clamp which isoperated "mechanically ofthe' cam ginay bear on said ferrulebojdy.

which his ofsiinple design and-not ex from its fu'll-line positionto its dotted p pensiveconstruction. "And a. further object sition at. 15.", 16

Of my. improvementis to provide a file han- In? a" hole n cross "16* aiiially regise' dle clamp sufiiciently. adj'ustablejto iiCGOHl: tering with hole- 91s ferrule is mounted tostronglyhold and easily,releasejthe' ffiles, ln'the latterf case theslide frameisdrawn 60 1e modate several sizes'and kinds of files; -'wi'ng head screw for revolution or 65 Iattain these objects with the mechanismreciprocation. Said screw is carried" for illustrated-in the accompanying; sheet of wardito" engagewith tappedhole 12 in jaw drawingsi which Figure 1 is a plan ,view 10.,I -.Dn screw 19.18: 'mounted coil. springfil of .my file clamp,;Figuie= vijs a}side; elevawhich isjal'so loosely mounted in. holei9 in tionfof Fig. 1 she in'githe file handle, Fi'gi ferrule "ET-1 m reacts between. jaw .10. and To 3 is at-segregated view of the wing head crosshead ltl. I 7 screw usedyinmy damp; Fig." is a"Sgre 'ln p actice; Thefliletangimay be clamped gated rear, elevation "of thenferruleu'sed iii-between 10 and wheiiwin' grooves 13 my clamp, and Fig- 54s asegregatedrear or the sha111;- j;em1 0rt'h'e fi le'fbodyj'may" e 2e elevation of one of' the jaws used in my 'clainpedfbetweeii ths'jaws' snssnea; sarswi clamp. 5 19 may protrude-through jaw 10, as illus-. Similar Characters refer to similar parts trated,-or it may be drawn back within the throughout. bodyof said jaw. In the former case the f More particularly: On file handle'disiscrew alone bears on-jthat side of the file fixed ferrule; 7. In the ferrule-are two -while in the latter case'j parallel grooves 8 8 transversally of the. file. 'l-his pcssibility of clamping the. file be;

same nearits outer end. -Also' in the rear tween jaw 14E and the {end' of-screw 19. or

aw 1O bears'on said 8 1 side only of the ferrule is'hole 9 centrally between the two jaws as. desired allows of.

placed betweengrooves's, see Fig.- l. Mountusingany'given size of handle clamp with: 3 ed in the outer end/of the ferrule are two a greater varietyof sizes of files thanothen 5 I semicylindrieal jaws, 10 and 14.' Bothjaws wise 'w'ouldb'efpossible. Y f 5 have central longitudinalV grooves 13 111K? H1811 setting screw 19 for any particular taposed when in operative POSltlOll. In each file then between-the jaws preferably the adof said jaws are parallel. side grooves ,11," ust1nent of said screw providesthat whenv 7 when the former are mounted in operative. coils of spring 21 Wlll bear on each other position in saidferrule. 'Also in jaw lOonly asillust-rated. Hence, when afileis clamped is tapped hole 12, see Fig. 5, axially regisin this'handle spring 21 serves as, a block" tering with hole 9 in ferrule 7 when said between jaw 10 and head 16. Infall cases jaw is mounted in the ferrule. Jaws 10 and thegadjustment of screw 19 preferably 'al- 1 1 1 are alike in every particular except jaw lows handle 18 to, be carried to its position;

10 has tapped hole 12 therein. at 18' when'the clamping is complete. Dur A slide frame consisti g of similar legs ing the period of adjusting the clamp to the 15,. 15 joined by cross head 16 is fmounted file between the jaws the fiexibility of spring 15' for'transverse reciprocation in notches 8, 8 21 reacting between hcad16 and jaw 10 aids ferrule T with legs 15 engaged in said in thatntli'e file may be lightly held in the notches. Oil legs 15 are also mounted jaws :clamp thereby during the time of setting the I 10 and 14 for rec1procationwith notches 11 clamp tofit saidfile. v

engaged with said legs. ;Through register- Having thus disclosedmy invention, what 11 registering with grooves 8, 8 in ferrule handle 18 is turned to itsposition at 18 the 90 I ing holes in'the-ends of'legs 15is rivet" 17 I claim as new thereinand desire to secure V on when is mounted cam lever e18, 18 for by Letters Patent"is,- H I oscillation. Cam (118.- is eccentric on rivet 1. Ina file handle clamp in combination, a 17 and bears on the body of ferrule 7 befile handle ferrule h'aving'a pair ofparallel, tween legs lfi) ,ll hen handle 18 is in its diam'etrically-disposed transverse. grooves fullline posit on theshort'est contacting ratherein an'd a hole through itswall between said grooves, a slide frame consisting of two parallel legs and a head joining them at one end mounted for reciprocation in said ferrule grooves, a handle cam mounted for oscillation on a pivot in the ends of said frame legs-adapted to bear on said ferrule,

two semicylindrical jaws having transverse grooves therein'mounted'wlth n said ferrule on said frame legs for reciprocation thereon,

and a spring mounted in said ferrule hole for reaction between said frame headand one-of said jaws. v

"2. In a file handleclamp in combination, a file handle ferrule having a pair of par,al-' lel, dia1netricallydisposed transverse grooves therein and a hole through its walls betweena slide frame consisting of said grooves, 7 two parallel legs olned'atone end by a cross-head having a central hole therethrough mounted for reciprocation in said ferrule grooves, a handle cam mounted for oscilla'tion on a pivot in the ends of said frame legs adapted to bear on said ferrule, two sem cylindrical jaws having transverse grooves therein mountedwithinsaid ferrule on said frame legs for reciprocation one of said jaws having aradial tapped hole there- 7 in between said grooves, a screw mounted in sa d hole in said crosshead and in said hole frame crosshead.

in said ferrule in engagement with said tapped hole in said one of said aws, and a;

spring mounted in said hole in said ferrule mounted for reciprocation in said ferrule grooves, ahandle cam mountedfor oscillation on pivot in the ends of saidframe le s adapted to bear onsaid ferrule, two semicylindrical jaws having transverse grooves therein mounted within said ferrule on said franie'legs for reciprocation one of said jaws having a radial tapped hole therei in between said grooves, a screw mounted in'said hole in said crosshead and in said hole in said'ferrulejengaged in said tapped hole in said one jaw, and a sleeve mounted in said hole in said ferrule on said screw onsaid one jaw and on said WILLIAM A. m, Y. o

adapted to bear 

